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Finding the Fourth Proportional to 9,941, 14,915.58 and 4,391.40

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Solution

The fourth proportional to 9,941, 14,915.58 and 4,391.40 is: 6,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,941 : 14,915.58 = 4,391.40 : x
  2. Step 2: Convert to fraction form
    9,941/14,915.58 = 4,391.40/x
  3. Step 3: Cross multiply
    9,941x = 14,915.58 × 4,391.40
  4. Step 4: Simplify right side
    9,941x = 65,500,278.01
  5. Step 5: Solve for x
    x = 65,500,278.01/9,941
  6. Step 6: Final answer
    x = 6,588.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.